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GE Oil & Gas (NYSE: GE) is introducing its next-generation technology
for shearing and sealing wellbore tubulars at the 2012 Offshore
Technology Conference (OTC) in Houston.
The new Blind Shear Ram is designed for use in GE’s 18-3/4 inch ram
blowout preventers (BOP) used in drilling. The new patent-pending Blind
Shear Ram has the ability to both shear and seal after cutting 6-5/8
inch tool joints, which are heavy coupling elements for a drill pipe.
GE’s Blind Shear Ram allows customers to use current BOP stack
arrangements without having to manage the spacing between rams or create
operational methods to avoid 6-5/8 inch tool joints. This technology
solution also is designed to eliminate non-shearable sections, allowing
for greater shearing flexibility.
The shearing capability was confirmed during testing witnessed by
representatives from several leading oil companies. The rams were
successfully tested to 15,000 psi after cutting the tool joint.
Centralizing arms are designed to allow successful shearing of buckled
or offset pipe, and modifications to the block and blade allow greater
force to be applied without damage.
“Our new Blind Shear Rams are designed to centralize, shear and seal
after cutting tubulars up to and including 6-5/8 inch drill pipe tool
joints in the BOP,” said Sam Aquillano, vice president—drilling and
surface for GE Oil & Gas. “Previous offerings included a new casing
shear ram that could cut but not seal 6-5/8 inch drill pipe tool joints.”
He added, “The Blind Shear Ram is the latest example of how GE continues
to seek and develop innovative solutions for the challenges that our
customers face in drilling, particularly in deepwater and challenging
environments. We are continuing testing to understand the full upper
limits of what the new blind shear ram designs can achieve.”
The new ram design is now being offered for use with GE’s current 5K
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